National Greenhouse Gas Inventory System in Italy. Year 2010

Transcription

1

2 National Greenhouse Gas Inventory System in Italy. Year 2010 Rapporti 120/2010

3 Legal Disclaimer The Institute for Environmental Protection and Research, or persons acting on its behalf, are not responsible for the use that may be made of the information contained in this report. Authors Riccardo De Lauretis, Daniela Romano, Marina Vitullo, Chiara Arcarese Contact: Riccardo De Lauretis telephone fax ISPRA- Institute for Environmental Protection and Research Environment Department Monitoring and Prevention of Atmospheric Impacts Air Emission Inventory Unit Via V. Brancati, Rome ITALY ISPRA is the Institute for Environmental Protection and Research established by the Italian Law 133/2008, as published in the Official Journal n. 195, August The Institute performs the functions of three former institutions: APAT (Agency for Environmental Protection and Technical Services), ICRAM (Central Institute for Applied Marine Research), INFS (National Institute for Wildlife). Extracts from this document may be reproduced on the condition that the source is acknowledged. ISPRA, Rapporti 120/2010 ISBN Cover design Franco Iozzoli Text available on ISPRA website at 2

4 Contents 1. THE UN FRAMEWORK CONVENTION ON CLIMATE CHANGE AND THE KYOTO PROTOCOL DEFINITION OF NATIONAL SYSTEM GENERAL FUNCTIONS SPECIFIC FUNCTIONS Inventory planning Inventory preparation Inventory management...19 REFERENCES AND SOURCES...21 ANNEX 1: THE NATIONAL REGISTRY FOR FOREST CARBON SINKS...24 ANNEX 2: THE NATIONAL REGISTRY

5 1. The UN Framework Convention on Climate Change and the Kyoto Protocol The United Nations Framework Convention on Climate Change (UNFCCC), adopted on 09/05/1992 and entered into force on 21/03/1994, was ratified by Italy in the year 1994 through law n.65 of 15/01/1994. On 11/12/1997, Parties to the Convention adopted the Kyoto Protocol, which establishes legally binding greenhouse gas emission limitation commitments in the period from 2008 to 2012, with reference to 1990 emission levels. Italy ratified the Kyoto Protocol on 31 st May 2002 through law n.120 of 01/06/2002. The Kyoto Protocol finally entered into force on 16 th February The Kyoto Protocol has established emission limitation for Annex B Parties (i.e. industrialised countries and countries with economy in transition): in particular, the European Union as a whole is committed to an 8% reduction within the period , in comparison with base year levels. For Italy, the EU burden sharing agreement, set out in Annex II to Decision 2002/358/EC and in accordance with Article 4 of the Kyoto Protocol, has established a reduction objective by 6.5% in the commitment period, in comparison with 1990 levels. As a Party to the Convention and the Kyoto Protocol, Italy is committed to develop, publish and regularly update national emission inventories of greenhouse gases as well as formulate and implement programmes to reduce these emissions. In addition, Article 5.1 of the Kyoto Protocol requires that the Parties included in Annex I to the Convention have in place a National System by the end of 2006 at the latest for estimating anthropogenic greenhouse gas emissions by sources and removals by sinks and for reporting and archiving the results. In the Decision of the European Parliament and of the Council concerning a mechanism for monitoring Community greenhouse gas emissions (280/2004/EC) it is required that Member Countries establish a national greenhouse gas inventory system by the end of 2005 at the latest and that the Commission adopts the EC s inventory system by 30 June Definition of National System In the first Conference of the Parties serving as the Meeting of the Parties to the Protocol, held in 2000, the Guidelines for national systems under article 5, paragraph 1, of the Kyoto Protocol contained in the document FCCC/KP/CMP/2005/8/Add.3 were adopted by Decision 19/CMP1. A national system, as defined in the guidelines, includes all institutional, legal and procedural arrangements established within a Party included in Annex I for estimating anthropogenic emissions by sources and removals by sinks of all greenhouse gases not controlled by the Montreal Protocol, and for reporting and archiving inventory information as reported (UNFCCC, 2005). National Systems are set up to enable Parties included in Annex I to estimate anthropogenic greenhouse gas (GHG) emissions by sources and removals by sinks and to report these emissions by sources and removals by sinks in accordance with the Kyoto Protocol and the relevant decisions of the Conference of the Parties (COP) and/or the Conference of the Parties serving as the meeting of the Parties to the Kyoto Protocol (COP/MOP). In addition, they are arranged to facilitate the review of the information submitted and to ensure and improve the quality of the inventories. The overall goal of national systems is to ensure the quality of the annual national inventory through 4

6 planning, preparation and management of inventory activities. Inventory activities include collecting activity data, selecting methods and emission factors appropriately, estimating anthropogenic GHG emissions by sources and removals by sinks, implementing uncertainty assessment and quality assurance/quality control (QA/QC) activities, and carrying out procedures for the verification of the inventory data at the national level, as described in the guidelines (UNFCCC, 2005). To this end, a national system should guarantee that a Party compiles the national inventory fulfilling the quality principles of: transparency in methodologies, assumptions and references used; consistency in the methodologies throughout the time series; comparability among inventories following the methodologies and the form of presentation agreed on in the Conference of the Parties to the UNFCCC; accuracy in the calculation which should not result either in systematic over- nor underestimations and should ensure that uncertainties are as small as possible; completeness in the sources or sinks and gases as specified in the relevant guideline; timeliness to the agreed annual schedule. The national system guarantees that the data not only conform to the quality requirements, but they are also officially approved by governments. 3. General functions In the implementation of its national system, each Party included in Annex I shall establish and maintain the institutional, legal and procedural arrangements between the government agencies and other entities responsible for the planning, preparation and management of the inventory. Parties shall ensure sufficient capacity for timely performance of the specific functions defined in the guidelines for national systems, including data collection for estimating anthropogenic GHG emissions by sources and removals by sinks and arrangements for technical competence of the staff involved in the inventory development process. A single national entity shall be designated with overall responsibility for the national inventory (UNFCCC, 2005). Parties shall prepare national annual inventories and supplementary information in a timely manner and provide information necessary to meet the reporting requirements in accordance with the Kyoto Protocol and the relevant decisions of the COP and/or COP/MOP. In particular, the description of the national system and supplementary information under Article 7.1, including information on units of lands subject of activities under Article 3.3 and activities elected under Article 3.4, is illustrated in the Annex. In fact, the National Registry for Carbon sinks has been instituted by a Ministerial Decree on 1 st April 2008 and is part of the National Greenhouse Gas Inventory System in Italy. The National System for the Italian Greenhouse Gas Inventory has been established by the Legislative Decree 51 of March 7 th As indicated by art. 14 bis of the Decree, the Institute for Environmental Protection and Research (ISPRA), former Agency for Environmental Protection and Technical Services (APAT), is the single entity in charge of the development and compilation of the national greenhouse gas emission inventory. As single entity, ISPRA is responsible for all aspects of national inventory administration: collection and processing of activity data; selection of appropriate emission factors and estimating methodologies; 5

7 reporting and quality management activities; archiving of the inventory results. In addition, ISPRA has to draw up annually a national system plan to be communicated to the Ministry for the Environment, Land and Sea. As for the official approval, the Ministry for the Environment, Land and Sea is responsible for the endorsement of the inventory and for its communication to the Secretariat of the Framework Convention on Climate Change and the Kyoto Protocol. The Ministry is also responsible for the approval of the annual National System plan. The inventory is also submitted to the European Commission in the framework of the Greenhouse Gas Monitoring Mechanism. The Italian Atmospheric Emission Inventory and the Italian Greenhouse Gas Inventory are compiled and maintained by the Institute for Environmental Protection and Research. A specific unit of the Institute is responsible for the planning, preparation and management of the inventory in the framework of both the United Nations Convention on Climate Change and the Convention on Long Range Transboundary Air Pollution. The whole inventory is compiled by the institute; scientific and technical institutions and consultants may help in improving information both on activity data and emission factors of some specific activities. All measures to guarantee and improve the transparency, consistency, comparability, accuracy and completeness of the inventory are undertaken. To this end, a QA/QC report is prepared annually by the inventory expert team including improvements in response to review processes and those planned for the next submissions. The submission of the national GHG emission inventory is carried out through compilation of the Common Reporting Format (CRF) and the preparation of the National Inventory Report (NIR), according to the guidelines provided by the United Nations Framework Convention on Climate Change and the European Union s Greenhouse Gas Monitoring Mechanism. Detailed information on emission figures and estimation procedures, including all the basic data needed to carry out the final estimates, is provided in the NIR in order to improve the transparency, consistency, comparability, accuracy and completeness of the inventory. The national inventory is updated annually in order to reflect revisions and improvements in the methodology and use of the best information available. Adjustments are applied retrospectively to earlier years, which accounts for any difference in previously published data. Emission estimates comprise the six direct greenhouse gases under the Kyoto Protocol (carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, sulphur hexafluoride) which contribute directly to climate change owing to their positive radiative forcing effect and four indirect greenhouse gases (nitrogen oxides, carbon monoxide, non-methane volatile organic compounds, sulphur dioxide). The CRF files, the NIR and other related documents can be found at the website As single National Authority, ISPRA bears the responsibility for the general administration of the inventory, co-ordinates participation in reviews, and publishes and archives the inventory results. Furthermore, the Institute participates in work under the auspices of the UNFCCC, where guidelines for reporting are discussed and decided upon, as well as in the EU monitoring mechanism for inventories of greenhouse gases, where guidelines for reporting to the EU are regulated. In order to complete the institutional framework, the national registry for carbon sinks and the national 6

8 registry need to be outlined. The National Registry for Carbon sinks was instituted by a Ministerial Decree on 1 st April 2008 and it is part of the Italian National System. The registry includes information on units of lands subject of activities under Article 3.3 and activities elected under Article 3.4 and related carbon stock changes. The National Registry for Carbon sinks is the instrument to estimate, in accordance with the COP/MOP decisions, the IPCC Good Practice Guidance on LULUCF and every relevant IPCC guidelines, the greenhouse gas emissions by sources and removals by sinks in forest land and related land-use changes and to account for the net removals in order to allow the Italian Registry to issue the relevant amount of RMUs. In 2009, a technical group, formed by experts from different institutions (ISPRA, Ministry of the Environment, Land and Sea, Ministry of Agriculture, Food and Forest Policies and University of Tuscia), set up the methodological plan of the activities necessary to implement the registry and define the relative funding. Some of these activities are planned to be completed by 2010, which results should supply data useful to update and improve the estimations. For this year submission, emissions and removals from 3.3 and 3.4 activities have been estimated on the basis of data and methodologies used for the inventory under the Convention. A detailed description on the registry and additional information on activities under Article 3.3 and Article 3.4 are reported in Annex 1 of this document. The Italian National Registry is also operated and maintained by ISPRA under the supervision of the national Competent Authority for the implementation of Directive 2003/87/CE, jointly established by the Ministry for Environment, Land and Sea and the Ministry for Economic Development. ISPRA, as Registry Administrator, becomes responsible for the management and functioning of the Registry, including Kyoto protocol obligations. The registry was connected to the international transaction log (ITL) of the UNFCCC secretariat in October Detailed description of the national registry is presented in Annex Specific functions 4.1 Inventory planning As part of its inventory planning, each Party included in Annex I shall designate a single national entity with overall responsibility for the national inventory, make available the postal and electronic addresses of the national entity responsible for the inventory, define and allocate specific responsibilities in the inventory development process, including those relating to choice of methods, data collection, particularly activity data and emission factors from statistical services and other entities, processing and archiving, and QC and QA. This last definition shall specify the roles of, and cooperation between, government agencies and other entities involved in the preparation of the inventory, as well as the institutional, legal and procedural arrangements made to prepare the inventory (UNFCCC, 2005). The Party should elaborate an inventory QA/QC plan which describes specific QC procedures to be implemented during the inventory development process, facilitate the overall QA procedures to be conducted, to the extent possible, on the entire inventory and establish quality objectives. Besides, Party should establish processes for the official consideration and approval of the inventory, including 7

9 any recalculations, prior to its submission and to respond to any issues asked by the inventory review process under Article 8 (UNFCCC, 2005). As part of its inventory planning, each Party included in Annex I should consider ways to improve the quality of activity data, emission factors, methods and other relevant technical elements of inventories. Information obtained from the implementation of the QA/QC programme, the review process under Article 8 and other reviews should be considered in the development and/or revision of the QA/QC plan and the quality objectives (UNFCCC, 2005). The Legislative Decree 51 of March 7 th 2008 designated ISPRA, former APAT, as single national entity with overall responsibility for the national emission inventory. The Italian greenhouse gas inventory and the national inventory report are compiled annually by the Institute. According to the same decree, the Ministry for the Environment, Land and Sea is responsible for the official consideration and endorsement of the inventory and for the communication to the Secretariat of the Framework Convention on Climate Change and the Kyoto Protocol. The inventory is also submitted to the European Commission in the framework of the Greenhouse Gas Monitoring Mechanism. The submission of the inventory to the European Commission is by the due date of 15 th January which can be extended up to 15 th March; 15 th April is the deadline for the national submission to the UNFCCC. ISPRA is responsible for all aspects of national inventory preparation, reporting and quality management. Activities include the collection and processing of data from different data sources, the selection of appropriate emissions factors and estimation methods consistent with the IPCC Guidelines (IPCC, 1997; IPCC, 2006), the IPCC Good Practice Guidance and Uncertainty management (IPCC, 2000) and the IPCC Good Practice Guidance for land use, land-use change and forestry (IPCC, 2003), the compilation of the inventory following the QA/QC procedures, the assessment of uncertainty, the preparation of the National Inventory Report and the reporting through the Common Reporting Format, the response to the review processes, the updating and data storage. The web electronic address where all the information related to the inventory can be found is: Different institutions are responsible for statistical basic data and data publication, which are essential for ISPRA in order to carry out emission estimates. These institutions are part of a National Statistical System (Sistan), which provides national official statistics, and therefore are asked periodically to update statistics; moreover, the National Statistical System ensures the homogeneity of the methods used for official statistics data through a coordination plan, involving the entire public administration at central, regional and local levels. The National Statistical System is coordinated by the Italian National Institute of Statistics (ISTAT) whereas other bodies, joining the National Statistical System, are the statistical offices of ministries, national agencies, regions and autonomous provinces, provinces, municipalities, research institutes, chambers of commerce, local governmental offices, some private agencies and private subjects who have specific characteristics determined by law. The Italian statistical system was instituted on 6 th September 1989 by the Legislative Decree n. 322/89, which established guiding principles and criteria for reforming public statistics. This decree addresses to all public statistical bodies and agencies which provide official statistics both at local, national and international level in order to assure homogeneity of the methods and comparability of the results. To this end, a national statistical plan which defines surveys, data elaborations and project studies for a 8

10 three-year period shall be draw up and updated annually, as established in the Decree n. 322/89. The procedures to be followed with relation to the annual fulfilment as well as the forms to be filled in for census, data elaborations and projects, and how to deal with sensitive information are also defined. The plan is deliberated by the Committee for addressing and coordinating statistical information (Comstat) and forwarded to the Commission for the assurance of statistical information; the Commission adopts the plan after endorsement of the Guarantor of the privacy of personal data. Finally, the plan is approved by a Prime Ministerial Decree after consideration of the Interministerial Committee for economic planning (Cipe). The latest Prime Ministerial Decree, which approved the three-year plan for , was issued on 6 th August 2008; an update of the plan for was approved by a Prime Ministerial Decree on 3 rd August Statistical information and results deriving from the completion of the plan are of public domain and the system is responsible for wide circulation. Ministries, public agencies and other bodies are obliged to provide the data and information specified in the annual statistical plan; the same obligations regard the private entities. All the data are protected by the principles of statistical disclosure control and can be distributed and communicated only at aggregate level even though microdata can circulate among the subjects of the Statistical System. The main Sistan products, which are primarily necessary for the inventory compilation, are: National Statistical Yearbooks, Monthly Statistical Bulletins, by ISTAT (National Institute of Statistics) (ISTAT, several years [a]; ISTAT, several years [b]); Annual Report on the Energy and Environment, by ENEA (Agency for New Technologies, Energy and the Environment) (ENEA, several years); National Energy Balance (annual), Petrochemical Bulletin (quarterly publication), by MSE (Ministry of Economic Development) (MSE, several years [a]; MSE, several years [b]; Transport Statistics Yearbooks, by MINT (Ministry of Transportation) (MINT, several years); Annual Statistics on Electrical Energy in Italy, by TERNA (National Independent System Operator) (TERNA, several years); Annual Report on Waste, by ISPRA (ISPRA, several years[a]). The national emission inventory itself is a Sistan product. Other information and data sources are used to carry out emission estimates, which are generally referred to in Table 1.1 in the following section. ISPRA has elaborated an inventory QA/QC procedures manual (APAT, 2006) which describes QC/QC procedures and verification activities to be followed during the inventory compilation process which facilitate the inventory improvement. Specific QA/QC procedures and different verification activities which are implemented thoroughly the current inventory compilation, as part of the estimation process, are figured out in the annual QA/QC plans (ISPRA, several years [b]). Quality control checks and quality assurance procedures together with some verification activities are applied both to the national inventory as a whole and at sectoral level. Future planned improvements are prepared for each sector, by the relevant inventory compiler; each expert identifies areas for sectoral improvement based on his own knowledge and in response to inventory UNFCCC reviews and other kind of processes. The quality of the inventory has improved over the years and further investigations are planned for all those sectors relevant in terms of contribution to total CO 2 equivalent emissions and with a high 9

11 uncertainty. Feedbacks derive, in particular, from the communication of data to different institutions and/or at local level. The preparation of environmental reports where data are needed at different aggregation levels or refer to different contexts, such as environmental and economic accountings, is also a check for emission trends. At national level, for instance, emission time series are reported in the Environmental Data Yearbooks published by the Institute (ISPRA, several years [c]). Emission data are also published by the Ministry for the Environment, Land and Sea in the Reports on the State of the Environment (MATT, several years) and in the National Communications (MATT, 2002; MATTM, 2007; MATTM, 2009) as well as in the Demonstrable Progress report (MATT, 2006). Moreover, figures are communicated to the National Institute of Statistics to be published in the relevant Environmental Statistics Yearbooks (ISTAT, several years [c]) as well as used in the framework of the EUROSTAT NAMEA Project (ISTAT, 2006). Comparisons between national activity data and data from international databases are usually carried out in order to find out the main differences and an explanation to them (ENEA/MAP/APAT, 2004). Emission intensity indicators among countries (e.g. emissions per capita, industrial emissions per unit of value added, road transport emissions per passenger car, emissions from power generation per kwh of electricity produced, emissions from dairy cows per tonne of milk produced) can also be useful to provide a preliminary check and verification of the order of magnitude of the emissions. This is carried out at European and international level by considering the annual reports compiled by the EC and the UNFCCC as well as related documentation available from international databases and outcome of relevant workshops. Additional comparisons between emission estimates from industrial sectors and those published by the industry itself in their Environmental reports are carried out annually in order to assess the quality and the uncertainty of the estimates. The quality of the inventory has also improved by the organization and participation in sector specific workshops. Follow-up processes are also set up in the framework of the WGI under the EC Monitoring Mechanism, which addresses to the improvement of different inventory sectors. Specifically in the last years, two workshops were held, one related to the management of uncertainty in national inventories and problems on the application of higher methodologies to calculate uncertainty figures, the other on how to use data from the European emissions trading scheme in the national greenhouse gas inventories. Previous workshops addressed methodologies to estimate emissions from the agriculture and LULUCF sectors, involving the Joint Research Centre, from the waste sector, involving the European Topic Center on Resource and Waste Management, as well as from international bunkers, involving the International Energy Agency and EUROCONTROL. Presentations and documentation of the workshops are available on the website at the address: A national conference on the Italian emission inventory was organized by ISPRA in October Methodologies used to carry out national figures and results of time series from 1990 to 2004 were presented detailing explanations for each sector. More than one hundred participants from national and local authorities, Ministries, Industry, Universities and Research organizations attended the two days meeting. 10

12 In 2007, in the context of the national conference on climate change a specific session was dedicated to the national emission inventory. In addition, a specific event was held on the results of the 2005 national GHG inventory. In April 2010 the time series of emission figures will be present in a specific national Kyoto Protocol event. A specific procedure undertaken for improving the inventory regards the establishment of national expert panels (in particular, in road transport, land use change and forestry and energy sectors) which involve, on a voluntary basis, different institutions, local agencies and industrial associations cooperating for improving activity data and emission factors accuracy. Specifically, for the LULUCF sector, following the election of the 3.3 and 3.4 activities and on account of an in-depth analysis on the information needed to report LULUCF under the Kyoto Protocol, a Scientific Committee, Comitato di Consultazione Scientifica del Registro dei Serbatoi di Carbonio Forestali, constituted by the relevant national experts has been established by the Ministry for the Environment, Land and Sea in cooperation with the Ministry of Agriculture, Food and Forest Policies. In addition to these expert panels, ISPRA participates in technical working groups within the National Statistical System. These groups, named Circoli di qualità, coordinated by the National Institute of Statistics, are constituted by both producers and users of statistical information with the aim of improving and monitoring statistical information in specific sectors such as transport, industry, agriculture, forest and fishing. As reported in previous sections, these activities improve the quality and details of basic data, as well as enable a more organized and timely communication. QC procedures are also undertaken on the calculations of uncertainties in order to confirm the correctness of the estimates and that there is sufficient documentation to duplicate the analysis. Figures used to draw up uncertainty analysis are checked with the relevant experts and literature references and they are proved to be consistent with the IPCC Good Practice Guidance (IPCC, 2000). A summary of all the main QA/QC activities over the past years which ensure the continuous improvement of the inventory is presented in the document Quality Assurance/Quality Control plan for the Italian Emission Inventory. Year 2010 (ISPRA, 2010 [b]). Specific activities relating to improvements of the inventory and QA/QC activities carried out during the last years were: Energy Industrial processes Sectors Review. An overall revision has concerned the iron and steel emissions coming both from the combustion itself and the production process. A full carbon balance has been calculated and CO 2 emissions have been properly allocated between the relevant subsectors. CO 2 emission factors for fuel oil, syngas from heavy residuals, natural gas and coal were revised on account of additional information collected from the EU emissions trading scheme and the National Grid Administrator (Terna). For the industrial sector, new information was available on the amount of CO 2 recovered in the ammonia production process. Agriculture sector. CH 4 and N 2 O emissions have been revised taking into consideration the results from the MeditAIRaneo project. Energy Balance Verification. The task force of energy and inventory experts (Ministry of Production Activities, ENEA and APAT) established to examine differences in basic data between the CRF and the joint EUROSTAT/IEA/UNECE questionnaire submissions and to improve the 11

13 details of the National Energy Balance finalised its study and reported the results in the document Energy data harmonization for CO 2 emission calculations: the Italian case (ENEA/MAP/APAT, 2004). Road Transport Emissions Review. The Italian expert panel on Transport, which includes experts from Research Institutes, Universities, Industrial Associations, Local Authorities, Ministries and Public Authorities, has continued its work on the improvement and assessment of emission estimations from road transport. There has been a considerable improvement on the details of basic data to be used within the COPERT model, in terms of both availability and timeliness. Studies of the expert panel group as well as presentations held in different meetings can be found on the website Specifically, this year the whole time series of road transport emissions has been recalculated using the updated version of the model, COPERT 4, affecting CH 4 and N 2 O emissions. Other Off road Emissions Review. The whole time series of aviation emissions was recalculated last year as a consequence of a specific sectoral study which considered most recent trends in civil aviation both in terms of modelling between domestic and international flights and technological progress of the fleet. The methodology was applied at national and airport level and the results shared with national experts in the framework of an ad hoc working group instituted by the National Aviation Authority (ENAC). There was also a revision of the methodology to estimate emissions from the maritime sector from 2004, on account of a national study which considered most recent trends in terms of modelling between domestic and international consumptions and improvements in operational activities in harbour. Also in this case, results were presented to a working group on local air emission inventories, formed by local authorities, sectoral experts, the Ministry of Environment, Land and Sea, and air quality model experts. MeditAIRaneo Project. A three years project involving the Inventory Reference Centres of the European Mediterranean Countries (Italy, Spain, France, Greece, and Portugal) started at the end of the year The aim was to examine in details emissions that are specific and/or typical of the Mediterranean Countries. Four different studies on air emissions from vegetation, agriculture, solvent use and urban road transport in Mediterranean areas were funded by APAT. Common objectives are analysis of methodologies and emission factors used by Mediterranean countries for estimating emissions, individuation of Mediterranean peculiarities, in comparison with other European countries, such as climate, technologies, industrial management, identification of methodological points which need in-depth examination and uncertainty assessment. An Italian case study has been developed for each of the four projects. In 2006 all the projects concluded and the results have been used in the national inventory to improve country-specific emission factors. Emissions Trading Scheme. The analysis of sectoral industrial data from the Italian Emission Trading Scheme database has been used to develop country-specific emission factors and check activity data levels. European Pollutant Emission Registry. Data from the Italian Pollutant Emission Register (EPER- EPRTR) from different industrial sectors were used in the estimation and/or as a check and comparison with the estimates carried out at national level. In particular, this regards the production of non-ferrous metals, chemical productions such as nitric and sulphuric acid, and the production of iron and steel. Local inventories. A study on the top-down approach to the preparation of local inventories was conducted and Italian emissions for different local areas were derived. In 2008, ISPRA finalised the 12

14 provincial inventory at local scale for the years 1990, 1995, 2000 and The results were checked out by regional and local environmental agencies and governments in order to find out the main weak points and contribute with information available to characterise the local environment. Final estimates and the detailed methodologies followed for each SNAP sector to carry out emission figures are available at ISPRA web address and published in technical reports (Liburdi et al., 2004; APAT/ARPA, 2006; ISPRA 2009). 4.2 Inventory preparation As part of its inventory preparation, each Party included in Annex I shall prepare estimates, make a quantitative estimate of the uncertainty for each source category and for the inventory in total, identify key source categories, and ensure that appropriate methods are used to estimate emissions from key source categories in accordance with the IPCC guidelines and good practice guidance. Each Party shall also ensure that the inventory and any recalculations of previously submitted estimates of anthropogenic GHG emissions by sources and removals by sinks are prepared in accordance with the IPCC good practice guidance and relevant decisions of the COP and/or COP/MOP and that general inventory QC procedures (tier 1) are implemented in accordance with its QA/QC plan (following the IPCC good practice guidance) (UNFCCC, 2005). In addition, each Party should apply source-category-specific QC procedures (Tier 2) for key source categories and for those individual source categories in which significant methodological and/or data revisions have occurred, in accordance with the IPCC good practice guidance. A basic review of the inventory should be provided by personnel that have not been involved in the inventory development, preferably an independent third party, before the submission of the inventory, in accordance with the planned QA procedures; a more extensive review of the inventory for key source categories, as well as source categories where significant changes in methods or data have been made, should be provided (UNFCCC, 2005). Based on the reviews and periodic internal evaluations of the inventory preparation process, the inventory planning process should be re-evaluated in order to meet the established quality objectives (UNFCCC, 2005). The Italian emission inventory is based on methodologies which are consistent with the IPCC guidelines, the IPCC Good Practice Guidance and the European EMEP-CORINAIR Emission Inventory Guidebook (IPCC, 1997; IPCC, 2006; IPCC, 2000; IPCC, 2003; EMEP/CORINAIR, 2007); national emission factors are used as well as default emission factors from international guidebooks, when national data are not available. Development of national methodologies is supported by background reference materials. Quantitative estimates of uncertainty are calculated for source category at a detailed level and for the inventory in total following the IPCC Good Practice Guidance. The assessment of key categories is particularly important, as they should receive special consideration in terms of methodological aspects and quality assurance and quality control verification. The process of the inventory preparation takes over annually; in the year t final emissions are calculated for the year t-2: in case of methodological changes or additional information, emissions are recalculated from 1990 onwards. Detailed information on emission figures and estimation methodologies, including all the basic data and emission factors needed to carry out the final estimates, are provided in the National Inventory Report (NIR) which completes the stage of inventory preparation. 13

15 ISPRA has established fruitful cooperation with a number of governmental and research institutions as well as industrial associations, which helps improving some key categories of the inventory. Specifically, these activities aim at the improvement of provision and collection of basic data and emission factors, through plant-specific data, and exchange of information on scientific researches and new sources. Moreover, when in depth investigation is needed and a high uncertainty in the estimates is present, specific sector analyses are committed to ad hoc research teams or consultants. ISPRA also coordinates with different national and regional authorities and private institutions for the cross-checking of parameters and estimates as well as with ad hoc expert panels in order to improve the completeness and transparency of the inventory. Basic data, emission factors and methodologies used in the estimation process are consistent with the IPCC Guidelines and supported by national experiences and circumstances. Final decisions are up to inventory experts, taking into account all the information available. All the reference material, estimates and calculation sheets, as well as the documentation on scientific papers and the basic data needed for the inventory compilation, are stored and archived at the Agency. After each reporting cycle, all database files, spreadsheets and electronic documents are archived as read-only-files so that the documentation and estimates could be traced back during the review process or the new year inventory compilation. Activity data used in emission calculations and their sources are briefly described here below. In general, for the energy and industrial sectors, emission data collected in the framework of the European Emissions Trading Scheme, the National Pollutant Emission Register (EPER/E-PRTR) and the Large Combustion Plant (LCP) Directive have yielded considerable developments in the inventory of the relative sectors. In fact, these data are always used either directly in the estimation process or as a verification of emission estimates, improving national emissions factors as well as activity data figures. In particular, for the energy sector, basic statistics for estimating emissions are fuel consumption published in the Energy Balance and provided by the Ministry of Economic Development. Additional information for electricity production is provided by the major national electricity producers and by the major national industry corporation. On the other hand, basic information for road transport, maritime and aviation, such as the number of vehicles, harbour statistics and aircraft landing and take-off cycles are provided in statistical yearbooks published both by the National Institute of Statistics and the Ministry of Transportation. Other data are communicated by different category associations. The analysis of data from the Italian Emission Trading Scheme database is used to develop country-specific emission factors and check activity data levels. For the industrial sector, the annual production data are provided by national and international statistical yearbooks. Emission data collected through the National Pollutant Emission Register (EPER/E-PRTR) are taken into account as a verification of emission inventory estimates for some specific categories. According to the Italian Decree of 23 November 2001, data from the Italian EPER/E-PRTR are validated and communicated by ISPRA to the Ministry for the Environment, Land and Sea and to the European Commission within October of the current year for data referring to the previous year. In addition, final emissions are checked and verified also taking into account figures reported by industries in their annual environmental reports. 14

16 Both for energy and industrial processes, emissions of large industrial point sources are registered individually, communicated also in the framework of the European Directive on Large Combustion Plants, based upon detailed information such as fuel consumption. Other small plants communicate their emissions which are also considered individually. For the other sectors, i.e. for solvents, the amount of solvent use is provided by environmental publications of sector industries and specific associations as well as international statistics. For agriculture, annual production data and number of animals are provided by the National Institute of Statistics and other sectoral associations. For land use, land use change and forestry, forest and soil surfaces are provided by the National Institute of Statistics while statistics on forest fires are supplied by the State Forestry Corps. For waste, the main activity data are provided by the Institute for Environmental Protection and research and the Waste Observatory. In Table 1.1 a summary of the activity data and sources used in the inventory compilation is reported. In case basic data are not available, proxy variables are considered; unpublished data are used only if supported by personal communication and confidentiality of data is respected. 15

17 SECTOR ACTIVITY DATA SOURCE 1 Energy 1A1 Energy Industries Fuel use Energy Balance - Ministry of Economic Development Major national electricity producers European Emissions Trading Scheme 1A2 Manufacturing Industries Fuel use Energy Balance - Ministry of Economic Development and Construction Major National Industry Corporation European Emissions Trading Scheme 1A3 Transport Fuel use Energy Balance - Ministry of Economic Development Number of vehicles Statistical Yearbooks - National Statistical System Aircraft landing and take-off Statistical Yearbooks - Ministry of Transportation cycles and maritime activities Statistical Yearbooks - Italian Civil Aviation Authority (ENAC) Maritime and Airport local authorities 1A4 Residential-public-commercial sector Fuel use Energy Balance - Ministry of Economic Development 1B Fugitive Emissions from Fuel Amount of fuel treated, Energy Balance - Ministry of Economic Development stored, distributed Statistical Yearbooks - Ministry of Transportation Major National Industry Corporation 2 Industrial Processes Production data National Statistical Yearbooks- National Institute of Statistics International Statistical Yearbooks-UN European Emissions Trading Scheme European Pollutant Emission Registry Sectoral Industrial Associations 3 Solvent and Other Product Use Amount of solvent use National Environmental Publications - Sectoral Industrial Associations International Statistical Yearbooks - UN 4 Agriculture Agricultural surfaces Agriculture Statistical Yearbooks - National Institute of Statistics Production data Sectoral Agriculture Associations Number of animals Fertiliser consumption 5 Land Use, Land Use Change Forest and soil surfaces Statistical Yearbooks - National Institute of Statistics and Forestry Amount of biomass State Forestry Corps Biomass burnt National and Regional Forestry Inventory Biomass growth Universities and Research Institutes 6 Waste Amount of waste National Waste Cadastre - Institute for Environmental Protection and Research, National Waste Observatory Table 1.1 Main activity data and sources for the Italian Emission Inventory In Table 1.2 a summary of the methods and emission factors used in the compilation of the Italian inventory is reported. A more detailed table as communicated to the European Commission in the framework of the monitoring mechanism of GHG emission inventory for the purpose of Article 4(1)(b) under the Implementing Provisions (EC, 2005) is reported in the National Inventory Report as an Annex (ISPRA, 2010). 16

18 SUMMARY 3 SUMMARY REPORT FOR METHODS AND EMISSION FACTORS USED Submission 2010 v1.1 Inventory 2008 ITALY GREENHOUSE GAS SOURCE AND SINK CATEGORIES Method applied Emission factor Method applied Emission factor Method applied Emission factor 1. Energy D,M,T1,T2,T3 CS,D D,M,T1,T2,T3 CR,CS,D D,M,T1,T2,T3 CR,CS,D A. Fuel Combustion D,M,T1,T2,T3 CS D,M,T1,T2,T3 CR,CS,D D,M,T1,T2,T3 CR,CS,D 1. Energy Industries T3 CS T3 CR,D T3 CR,D 2. Manufacturing Industries and T2 CS T2 CR,D T2 CR,D Construction 3. Transport D,M,T1,T2 CS D,M,T1,T2 CR,CS D,M,T1,T2 CR,CS 4. Other Sectors T2 CS T2 CR T2 CR 5. Other T2 CS T2 CR T2 CR B. Fugitive Emissions from Fuels T1,T2 CS,D T1,T2 CR,CS,D T1 D 1. Solid Fuels NA NA T1 CR,CS,D NA NA 2. Oil and Natural Gas T1,T2 CS,D T1,T2 CS,D T1 D Method applied HFCs PFCs SF6 2. Industrial Processes D,T2 CR,CS,D,PS D CR,CS,PS D D,PS CS,D,T2 CS,D,PS CS,T2 D,PS CS,D,T3 CS,PS A. Mineral Products D,T2 CS,D,PS NA NA NA NA B. Chemical Industry D CR,PS D CR,CS,PS D D,PS NA NA NA NA NA NA C. Metal Production D CR,CS,PS D CR,CS,PS NA NA NA NA T2 D,PS D PS D. Other Production NA NA E. Production of Halocarbons and SF6 NA NA NA NA NA NA F. Consumption of Halocarbons and SF6 CS,T2 CS,D,PS CS PS CS,T3 CS,PS G. Other NA NA NA NA NA NA D PS NA NA NA NA 3. Solvent and Other Product Use CR,CS CR,CS CS CS 4. Agriculture D,T1,T2 CS,D D,T2 CS,D A. Enteric Fermentation T1,T2 CS,D B. Manure Management T1,T2 CS,D T2 CS,D C. Rice Cultivation T2 CS D. Agricultural Soils NA NA D CS,D E. Prescribed Burning of Savannas NA NA NA NA F. Field Burning of Agricultural Residues D CS,D D CS,D G. Other NA NA NA NA 5. Land Use, Land-Use Change and Forestry T1,T2,T3 CS,D T1 D T1 D A. Forest Land T1,T2,T3 CS,D T1 D T1 D B. Cropland T1 CS,D NA NA NA NA C. Grassland T1 CS,D NA NA NA NA D. Wetlands NA NA NA NA E. Settlements T1 CS,D NA NA NA NA F. Other Land NA NA NA NA NA NA G. Other NA NA NA NA NA NA 6. Waste D CS CS,D,T2 CR,CS,D D CR,CS,D A. Solid Waste Disposal on Land NA NA T2 CS B. Waste-water Handling D D D CR,D C. Waste Incineration D CS D CR,D D CS D. Other NA NA CS CS NA NA 7. Other (as specified in Summary 1.A) CO2 CH4 N2O Emission factor Method applied Emission factor Method applied Emission factor NA NA NA NA NA NA NA NA NA NA NA NA Use the following notation keys to specify the method applied: D (IPCC default) T1a, T1b, T1c (IPCC Tier 1a, Tier 1b and Tier 1c, respectively) CR (CORINAIR) RA (Reference Approach) T2 (IPCC Tier 2) CS (Country Specific) T1 (IPCC Tier 1) T3 (IPCC Tier 3) OTH (Other) If using more than one method within one source category, list all the relevant methods. Explanations regarding country-specific methods, other methods or any modifications to the default IPCC methods, as well as information regarding the use of different methods per source category where more than one method is indicated, should be provided in the documentation box. Also use the documentation box to explain the use of notation OTH. Use the following notation keys to specify the emission factor used: D (IPCC default) CS (Country Specific) OTH (Other) CR (CORINAIR) PS (Plant Specific) Where a mix of emission factors has been used, list all the methods in the relevant cells and give further explanations in the documentation box. Also use the documentation box to explain the use of notation OTH. Table 1.2 Methods and emission factors used in the inventory preparation According to the IPCC Good Practice Guidance, an uncertainty assessment is carried out on the Italian 17

19 greenhouse gas inventory to establish the uncertainties related to different emission sources and the uncertainty of total emissions for the base year 1990 and the latest inventory year and the so- called trend uncertainty. The uncertainty assessment helps to identify the key categories whose effect on the total uncertainty of the inventory is highest; furthermore, by means of such assessment the improvement measures can be directed so that the total uncertainty of the inventory can be lowered as effectively as possible with the available resources. Uncertainty assessments have been calculated on the Italian greenhouse gas inventory from the inventory of 2001 onwards, recalculations only apply to the base year. Quantitative estimates of uncertainty for the Italian GHG inventory are calculated using a Tier 1 approach as defined in the IPCC Good Practice Guidance (IPCC, 2000), which provides a calculation based on the error propagation equations. In addition, a Tier 2 approach, corresponding to the application of Monte Carlo analysis, has been applied to specific categories of the inventory but the results show that, with the information available at present, applying methods higher than the Tier 1 does not make a significant difference in figures. The assumptions on which uncertainty estimations are based are documented for each category. Figures to draw up uncertainty analysis are checked with the relevant analyst experts and literature references and they are consistent with the IPCC Good Practice Guidance (IPCC, 2000). The IPCC Good Practice Guidance recommends as good practice the identification of key source categories in national GHG inventories (IPCC, 2000; IPCC, 2003). A key source category is defined as an emission source that has a significant influence on a country s GHG inventory in terms either of the absolute relative level of emissions or the trend in emissions, or both. Key categories therefore are those found in the accumulative 95% of the total annual emissions in the last reported year or belonging to the total trend, when ranked in descending order of magnitude. The assessment of national key categories is important because key categories should receive special consideration in terms of methodological aspects and quality assurance and quality control verification. Two different approaches are reported in the Good Practice according to whether or not a country has performed an uncertainty analysis of the inventory: the Tier 1 and Tier 2. When using the Tier 1, key categories are identified by means of a pre-determined cumulative emissions threshold, usually fixed at 95% of the total. If an uncertainty analysis is carried out at category level for the inventory, the Tier 2 can be used to identify key categories. The Tier 2 approach is a more detailed analysis that builds on the Tier 1; in this case, the results of the Tier 1 are multiplied by the relative uncertainty of each source/sink category. Key categories are those that represent 95% of the uncertainty contribution. So the factors which make a source or a sink a key category are a high contribution to the total, a high contribution to the trend and a high uncertainty. For the Italian inventory, a key category analysis is carried out according to both the Tier 1 and Tier 2 methods. National emissions are disaggregated, as far as possible, into the categories proposed in the Good Practice; other categories are added to reflect specific national circumstances. Both level and trend analysis are applied. It should be noted that higher tiers are mostly used for calculating emissions from the key categories as requested by the Good Practice Guidance (IPCC, 2000). Tier 2 QC procedures for key sources, as reported in the QA/QC manual procedures (APAT, 2006), are 18

20 applied. QC procedures are also undertaken on the calculations of uncertainties in order to confirm the correctness of the estimates and that there is sufficient documentation to duplicate the analysis. The process of the inventory preparation takes over annually. To meet the requirements of transparency, consistency, comparability, completeness and accuracy of the inventory, the entire time series from 1990 onwards is checked and revised every year during the annual compilation of the inventory. Measures to guarantee and improve these qualifications are undertaken and recalculations should be considered as a contribution to the overall improvement of the inventory. In addition to a new year, the inventory is updated annually by a revision of the existing activity data and emission factors in order to include new information available. Recalculations are elaborated on account of changes in the methodologies used to carry out emission estimates, changes due to different allocation of emissions as compared to previous submissions and changes due to error corrections. The inventory may also be expanded by including categories not previously estimated if sufficient information on activity data and suitable emission factors have been identified and collected. Revisions always apply to the entire time series. Information on the major recalculations is provided every year in the sectoral and general chapters of the national inventory reports; detailed explanations of recalculations are given compiling the relevant CRF tables. Descriptions and justifications of the current together with the planned improvements of the inventory are also supplied in the annual QA/QC plan (ISPRA, several years [b]). In point of fact, the annual QA/QC plan, include all the improvements planned to the inventory and references to the relevant documentation and information supporting the modifications at sectoral and general level. Changes are based on the observations of the different inventory review stages (internal and external evaluations by third parties involved in inventory issues), the review feedbacks received from the UNFCCC Secretariat on the previous inventory or from the European internal review, and other collected information. Whenever relevant changes in methodologies and emission estimates for key sources are planned, new methodologies and emission factors are chosen after consultation with the national experts also in the framework of the national sectoral expert panels. Internal reviews are also undertaken, comparing different methodologies, before changes are included in the inventory. The QA/QC plan is updated every year to re-evaluate the quality objectives of the inventory. Regarding a basic review of the inventory provided by preferably an independent third party, before the submission of the inventory, as requested by the UNFCCC guidelines, different proposals for an independent basic review of the greenhouse gas emission inventory are under examination. Difficulties are encountered not only in funding but in finding inventory experts, at national level, who are not involved in the preparation of the emission estimation process. 4.3 Inventory management As part of its inventory management, each Party included in Annex I shall archive inventory information for each year in accordance with relevant decisions of the COP and/or COP/MOP. This information shall include all disaggregated emission factors, activity data, and documentation about how these factors and data have been generated and aggregated for the preparation of the inventory as well as internal documentation on QA/QC procedures, external and internal reviews, documentation on 19